Locking mechanism



A. BDNZA.

LOCKQNG MECHANISM.

APPLICATION nuzu mac. 4, I920.

Patented July 5, 1921 A. BONZA.

v LOCKING mzcmmsm. 7 APPLICATION FILED DEC. 4, I920. 1,383,784.- Patented July 5,1921.

2 SHEETS-SHEET 2.

ANTHONY mom or FBL'IOH, Dmwmr.

PATENT or Specification of mm; Intent.

FICE.

Patented July 5; 1921.

r utation filed December 4, 1920. Serial Ku.428',416.

To all whom. it may r'rmcrrn:

Be it known that LAx'rnoxr Burma, a citizen of the United States, residin at Felton, in the county of Kent and State of Delaware, have invented rertain new and useful Improvements in Lot-king Morlnb nisms, of which the following is a speeification, refelrence being bad to the accompu fimg l rawlngs.

is invention relates to certain improvements in looking merhnnisms, and it is primarily an ohjret of the invention to provide a novel and improved nlerhaniam part'u'ularly adapted and designedfor use in rou-' nertion with a motor meter or the like so that said meter. when in up )hed position upon a radiator. may he e eetive y held against removal by an unauthorized person.

Another object of the invention is to provide a novel and improved inel-hanism of this general character which automatically operates to effect the requisite lot-king or holding engagement and wherein means are provided, operable by a key. for-releasing the mechanism from holding or engaging position.

The invention consists in the details of construction and in the rmnhinntion and ammgemeut of the several parts of my iinproved locking meehantsm whereby eel-tum 1mportunt advantiuns are attained and tho devire rendered simpler. lose expensive and otherwise more convenient rind advantageous for use. as will he hereinafter more fully set. forth.

The novel features of my invention will hereinafter he definitely elaitned.

in order that my invention may he the better understood, I will "now prm-nod to describe the some with relerenee to the areolnpanying drawings. wherein:

Figure 1 is a new partly in vertical new tion and partly-in elevation illustrnting a locking mechanism connlructed in arrordonce with an embodiment of my invention, certain parts living diagrammath-ally indicated by dotted lines.

Fig. :2 is a view similar to Fig. l hut showing the met-hanisnr in release )USltlUll.

F i 3 lis an elevational view i iust'rating the UCklllp," nmehnnisni when the emu-ting member or'elenient is retral-ted.

F ig. l is a horizontal sectional view taken through the hose or housing of the indirating means or meter. and

Fig. 5 is a view partly In vertical section and partly in .end elevation of the meclnv mam ns herein disclosed.

s disclosed in the aeeompan ing draw- 111g? 1 denotes the tiller-neck o a radi to eoniprisod In uliquid cooling 5 stein for o nternalcomhnstion engine lll'lt with whirh is engaged. in u wnventionul manner a closure ineniher or cup 2. .hlounted upon the rlosure member or cup 2 is the frame not a motor meter of a po now generally in use and which frame includes a hollowi base or'houslng 4 having direct contact, with the closure member or cup 2.

The frame 3 is also provided with a deiendmg stern 5 which extends through the Jase or houslnp 4 and through an opening U in the rentru portion of the elosnre memher or cup and terminates at distance below soul out or closure 2 so that when the cap 15 app iegl to the filler neck 1. the lower portion of said stem 5 is urrnli I within the filler neck. Disposed throng l the stem 5 and extending within the frame 3 is a thermostatic device 7 of a conventional type and which operates to indicate the thermal condition of the engine.

Threaded or otherwise secured upon the free or depending portion of the stem 5 is a lnlslllng or sleeve .8 herein disclosed as hold in applied position b the claim iing or landing screw 9. Pivotal y engaged, as at. 1. with the sleeve or hushin 8 at diumetr'- cally opposed points and sniistantiully midway thereof are the downwardly diverging arms 11 terminating in the outwardly d1 reeted lugs or lingers 12.. The inner face of each of the arms 11 at the lower portion thereof is provided with a pocketor recuss ll.

ating within said )oeket H is an end portion of an expunside member or roll spring 15, the opposite end portion oi" which hears: :iguinst the lower portion of the huslv i1n or sleeve 8. By this means ltll'll of the arms 11 is eonstantly urged upwardly so that the outeitulnlinp log 12 thereof is caused tonutonurtirallv extend below the sleeve 10 secured within the upper portion of the tiller neok l'. The wall of the sleeve 16 is redually reduced in thirkness from its ower edge to its upper edge so that tlie'inner face 17 of said sleeve operates as acitm to force the arms 11 inwurdlr while the cap or (:10

sure 2 is being applied. However, ust beno fore the'cap or closure 2 is completely up i of t in plied to tho. filler neck 1, the lugs 12 arms' 11 will move outwardly and extend below the lower 0d, of the. sleeve 16, whereby the cap or c osuro 2 anti the parts curried thereb are looked a inst'rcmoml and particular y by an nnaut orized person.

The pivoted o1- lq'ipcr end portions of the arms 11 are continued by the upwardly directed and converging pointed dcgchoz engaged from beneath the lower edge of the sleeve 16 so that the cap or closurc member and the parts carried thereby may be renewed when desired.

Normally, the free or pointed extremities of the dogs or tail iieces 18 are positioned closely adjacent to t e outer ends of the opposed slots 19 radiating from the o eni 8 1n the cap 01 closure 2.- The cy indncal member 20 depends from the inner marginal ortion of an annular member 21 armnged mwnrrlly of the closure member or cup .2.

The inner mu! 'nalaction of said annular member extem slig tly inward of the bore of the cylindrical member 20 to provide r.

shoulder 22 with which contacts rm expansible member 23, herein disclosed as u coil.

spring surrouncli the uoper portion of the s eeve or bushing l and also bearing against a shoulder 24 produced by reducing said upper portion of the sleeve or bnshi 8. This expensibl member or. spring 23 1a 0:": such length and tension as to normal] maintain the cylindrical member 20 at the imit of its upward or outward movement for n urpose to be hereinafter referred to. he

member 21 at diametrically opposed aims and adjacent its 1periphery is rovide with the outstandi to extend wi m the lower portion of the base 01 housing 4 through the slots 19.

Integrally formed with the outer face of the cylindrical member 20 and the under face of the annular member 21 am the webs 25 and the outer edges of said webs are beveled downwardly and inwardly to provide cam 26 which, upon downward movement of the cylindrical member 20, engage the inner edges of the dogs or tail pieces l8 to impart separating movement theicto whereby the arms 11 will be retracted.

The side wall of the base or housin r 4 is provided with a. horimntall direc keyhole 27 thron h which is a apted to be in sorted a key provided at its inserted portion' with a blade 28. The central portion of the blade 28 is cut away us at 29 so that the some may readily pass the stem 5 when the @Lkey is rotated in a dimctiou to bring; the

Igs 21 whic 1 are mlapted.

blade 28 in! contact with the outstanding lugs 21 for the purpose of depresing the cylindh'cnl member 20.

The shank 30 of the key K, when inserted within the base or housing 4, is positioned to one side of the stem 5. Arranged at the opposite sideof the stem 5 1s a horizontally disgioseti plate or septum 31 an-anged within the housing 01: base 4 and supported by the wall thereof. The inner ocfree or margin of the plate or septum 31 at oppo- -.-.-1;e sides of he stein 5 isproviciecl with outwwu'clly directed fingers or lugs 32 coplanar therewith. The blade 28 in its outer marginal portion is provided with vthe recesses 33 positioned in roper'rolation with res ect to'flze lugs or fingers 32 to ermit the ey to have unobstructed 01- m1 iindez'ed movement toward or from the annular member 21.

By this means, it will be perceived that a great many different arrangementsof the hi 01: fin rs 32 may be effected so, that, in p lctice, g ek user lucky he in possession of an individual operating he so that the possibility of the member 20 .aeing depressed to release the lugs ozafingcrs by an unauthorized person is materially reduced.

From the foregoing description it is thought to be obvious that a locking mechllli finish: constructed in accordance with my inmotion is particularly well adapted for use by reueouof' tho convenience and facility with which it ma be assembler} and operntetl. and it will a. 50 be obvious that my invention is susceptible oi some change and" modification without depurti from the principles and spirit; thereof and for this reason I do'not wish to be understood as limiting myself to the precise arrangementand formation of the several pints herein shown in carrying out my invention in prac tice except as hereinafter claimed.

claim:

1. In combination with a tubular member having one end upon and provided with an interim] shoulder, a (up for closing said open and of the tubular member, a part curried by the (up nml extending within the tubular mcmllcr when the cup is in applied position, a. movable arm cai'rlecl by said part for (:0- nctirm with the shoulder to hold the cap against displacement, automatic means for moving the arm into position to ooact with saidshmildcr, said arm being provided with (101', means for imparting movement to the last named member in said direction, and an tomutic means fox; imparting movement to said second named member in the opposite direction.

2. In combination with u tubular member having one end open and provided with an internal shoulder, a cap for elosin" said open end of the tubular member. a part carried by the rap and extending within the tubular member when the rap is in applied position, a movable arm carried by said part for coartion with the shoulder to hold the cap against displacement, automatic means for moving the arm into position to enact with said shoulder. said arm being provided with an angularly disposed dog, a member havin; movement lengthwise of the part and eontaeting with the dog upon movement in one direction to swing the arm free of the shoulder, means for imparting movement to the last named member in said direction, a housin; earried by the cap and positioned at the side of the rap remote from the part, said second named member extending within said housin; through the cap, and means insertible within the housing for engagen'ient with said second named member to move the same in a direction to engage the dog.

3. In combination with a tubular member having one end open and provided with an internal shoulder, a cap for closing said open end of the tubular member, a part carried by the cap and extending within the tubular member when the cap is in applied position, a movable arm earried by said part for c0- aetion with the shoulder to hold the cap against displarement. automatie means for moving the arm into position to roaet with said shoulder, said arm being provided with an angularly disposed dog, a member having movement lengthwise of the part and contacting with the dog upon movement in one direr'tion to swine the arm free of the shoulder, means for imparting movement to the last named member in said direction. a housing carried by the cap and positioned at the side of the cap remote from the part, said second named member extending within said housing through the cap, and selective means insertible within the housing for engagement .with said second named member to more the same in a direetion to engage the do n testimony whereof I hereunto affix my signature.

ANTHON Y BONZA. 

